California Nebula Exmoor 2018

California Nebula, Exmoor 2018

NGC 1499

The California nebula, also known as NGC 1499, an emission nebula around 100 light-years long. Hydrogen atoms, electrons and energetic starlight as photographed under the pristine dark skies of Exmoor.

Tech Card

Date / Location

10th November 2018, Exmoor, GMT+0, United Kingdom, TEMP: 8C, HUM: 96%, Bortle Class 3 ~SGM: 21.75 mag./arc sec2

Equipment

Camera: Nikon D810A

Imaging Telescope: Takahashi FS-60CB

Correcting Lens: Takahashi Reducer 0.72x (composite focal length at 264mm and focal ratio at f/4.9)

Mount: iOptron CEM25EC

Image Quality

14 bit RAW (NEF)

Exposure time per image / number of composities and sensitivity

ISO 3200, 6 x 180" subs

Total Integration Time

18mins

Calibration Frames

23 Darks, 23 Bias, 25 Flats

Software

PixInsight 1.8 Core

Photoshop

DEEP SKY

Deep Sky photographs

STARSCAPE

Starscape photographs

SOLAR SYSTEM

Solar system photographs